Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater
Um...., you changed the controller and it worked, then put the old one back and it doesn't work >> replace controller!
Posted on Oct 18, 2013
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Posted on Jan 02, 2017
SOURCE: Programmable T stat
your trane heat pump energizes the reversing valve with O - orange y - is to turn on the unit make sure you have your orange wire hooked up and the tstat programming set to heatpump otherwise your reversing valve might be bad
Posted on Jun 30, 2009
If the thermostat is not over shooting the temperature than don't worry about it.
These thermostats are very sensitive and will turn the heat back on even before the degrees drop on the display. Often they will shut down before the display changes also. You can change the sensitivity of the thermpstat if you read the directions and change the cycles per hour to a less number. There is an installers program in there that you need to push a combiunation of buttons to get too. The instructions tell you how to do that also.
Hopefully you did not throw away the instruction manual for your t-stat.. :-)
Posted on Dec 28, 2009
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